MOMS – Idéer till systemkoncept
Publish date: 2008-11-10
Report number: FOI-R--2576--SE
Pages: 90
Written in: Swedish
Abstract
In this report we present some alternative concepts for an electro-optical sensor system for detec-tion of surface laid mines. The final system evaluation of the project multioptical mine detection system (MOMS) will be made at the end of the project (during 2009). However is of importance that system performance and system aspects are formulated already at this stage and tested against measurements, modelling and in discussions with the end user. In order to design an efficient mine detection system, it is important to have signal proc-essing techniques available that cover the entire range of tasks associated with the prob-lem. A number of techniques that have been found promising within MOMS are discussed. Two main geometries for stand-off detection, down-looking and forward-looking, are being investigated. The optimal sensor combination is likely to be different in the two cases, since the phenomenology and appearance will be different. Passive sensors have a great capability concerning ground resolution, spectral resolution for example but are more limited in concerning 3-D shape, vegetation penetration, ambient light and polarization than active sensors. The sensors can be combined in a number of ways; different sensors can be used on the ground and airborne platforms and different modes of operation can also be attributed to different sensors. Airborne sensor suites should combine high resolution with large surface coverage rate. Special limitations are size, weight and power and stabilization; good stabilization per-formance is essential for data fusion and also for change detection. With the sensors on a ground vehicle the ground coverage rate will be reduced compared to an airborne system. The sensor suite could in principle be similar to the airborne sensor suite, but with higher resolution and maybe including more sensors. Radar is a possible additional sensor to enhance the "look-through" capability.